Sucker rod



Patente-d pr. 27, 1926i.

TILLMAN J' INES, OF ARTESIA, CALIFORNIA.

SUCKER ROD.

Application filed November 15, 1924. Serial No. 750,125.

To allfwzom t may concern.'

Beit known that I, TILLMAN JiNns, a citizen of the United States, residingat Artesia, in the county of Los Angeles and State of California, have invented certain new and useful improvements in Sucker Rods, of which the following is a specification, reference being had tothe accompanying draw- 1ngs.-

This invention relates to sucker rods, and more particularly to a new and improved construction of the rod facilitating connecf tion of the ends thereof.

An important objectof the invention is to provide a device. of this character enabling connection of the rod sections-Without the use of screw-threads.

A further object of the invention is to provide a device of this character of such nature that the present sucker rods may be altered to permit their use.

A still further object of the invention is to provide a coupling into which the sucker rod end is movable in one direction and a latch insertible after the sucker rod is in position to prevent return movement of the sucker rod and its disengagement from the coupling.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and wherein:-

Figure 1 is a detached perspective of a rod joint constructed in accordance with my invention Figure 2 through.

Figure 3 is a section on the line 3-3 of ltigure 2.

is a vertical sectional vieW there- Referring now more particularly to the the numeral 10 generally designates sucker rods, and 11 a coupling for adjacent ends of two sucker rods. As shown in the present illustration of the invention, this coupling has formed in opposite ends thereof longitudinally extending bores 12 adjacent ends of which are separated by a partition Wall 13. The ends of the bores 12 are enlarged as at 14. At one side of the coupling, longitudinally extending slots 15 are formed, each ameter of the bore 12 and each extending from the outer wall of the casing to the bore 12. The inner ends of the slots are increased in diameter, as atf16, so that the slot is of drawings,

of the same width as the di-- the same'width as the. diameter of the bore throughoutits length. The opposite faces 17 of the partition Wall 13 are converged toward that side of the coupling through which the slots 15 open.

The sucker rod 10 is of the same diameter as the bore 12 and isprovided upon its lower end with an enlargement or head 18 of the same diameter as the enlargement 14 of the bore. One side of this head is provided With a lug 19 of the same Width as the diameter of the head 18. The head is tapered in thickness from the lug-bearing side thereof to the.. opposite side to correspond to the taper of the side faces of the partition Wall 13. It Will be obvious that this sucker rod maybe inserted in either of the bores 12 by entering it through the slots 15 the heads 18 entering through the enlargement 16 of the slots and finally coming to rest in the enlargement 14 of the bores.

At this time the sides of the lug 19 will underlie the sides of the slot 15 and Will fit Vwithin the enlargement 16 of the slot. Entry of the "rod into the bore is facilitated bythe tapering of the faces of the end of the head of the rod and of the partition Wall.

As a means for locking the rod in position in the bore 12, I provide in the opposed Walls of the slots 15 vertically extending grooves 20. I further provide a metal block 21 of the same Width as the slot 15 having its inner Wall 22 curved upon the diameter of the bore and shaped to conform to the shaping of the outer surface 24 of the coupling member. The sidesof this block are provided with ribs 25 entering the grooves 2O to maintain the block against movement toward or away from the bore 12. lt Will be obvious that after the rods have been inserted and these blocks placed in position, so long as the blocks remain in position it will be impossible for the rods to move sidewise to escape from the coupling through the slots 15.

In order to prevent escape of the blocks 21 from the slots 15, I form in the coupling 11 adjacent the upper and lower ends thereof circumferentially extending grooves 26 and in the outer faces of the blocks 21 grooves 27 which, when the blocks" are fully seated, align with grooves 26 at the corresponding ends of the coupling 11. The grooves 27 kof the blocks 21 have formed in the base thereof a shallow bore or socket 28.

In the grooves 26 are disposed split resilient clamp rings 29 each having a lug 30 engageable in the bore 28 of the groove 27 With which it is, associated and normally held Within this bore by the resiliency of the ring. This lug prevents rotation of the ring and1 therefore, prevents the split of the ring representing' the weakest portion thereof and becoming aligned With the block 21 and permitting this block to shift Within the slot 15. It will, of course, be obvious that this locking means is capable of a considerable range of' change and modification as are the remaining details of structure hereinbefore set forth and I accordingly d0 not limit myself to such specific structure as hereinbefore recited except as hereinafter claimed.

I claim In a sucker rod and in combination, a coupling having a bore opening through one end thereof only and enlarged at its inner end, the Wall of the coupling having a slot formed therethrough co-extensive and communicating with the bore said slot being of the same Width as the diameter of the bore throughout its length, a rod of the same diameter as the bore and having a head of the same diameter as the enlargement of the bore, said head being provided at one side thereof with an outstanding lug of the same Width as the diameter of the head which, in the assembled relation of the coupling and rod, has its outer face flush with the outer face of the coupling, and means insertible in that portion of the slot corresponding t0 the smaller portion of the bore for prevent-ing transverse movement of the rod Within the bore7 comprising a bloclr insertible in and fitting the smaller portion of the slot only and provided upon its side faces with ribs coacting with vertically extending grooves formed in the side Walls of the slot.

In testimony whereof I hereunto aiiiX my signature.

TILLMAN J INES. 

